Mitsubishi LS2-190 User Manual

If the tension discs do not open sufficiently, the needle
thread will be trimmed too short and'come off the needle
eye.
Too widely opened tension discs, however, do not give a
suitable tension to the thread.
Note: Disc opening depends on the position of the tension
regulator casing. To obtain the optimum opening of the
discs, the groove of the casing, in which the thread
take-up spring is set, should be in line with the arm
boss surface.
Knife drive mechanism
4-*3*l Adjusting the cam shaft bracket unit
Fig, 10 shows the standard construction of the unit,
1) Adjusting the cam follower crank
i) Axial direction of the cam shaft: iLoosen the screw ® to adjust
the cam follower crank in the axial direction of the cam shaft,
ii) Play in cercumferential direction of the cam shaft: To eliminate
play in the circumferential direction of the cam shaft,
adjust position of the roller.
2) Adjusting the knife driving fork
\
i) Loosen the screw (D to adjust position of the fork,
3) Adjusting the roller shaft
i) Loosen the set screw © to release the roller shaft,
4.) Do not loosen the nuts ©
When the nuts were loosened, be sure to securely tighten them.
If the nuts become loose, the roller cannot properly enter the
cam groove and thread cannot be trimmed.
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From the library of: Superior Sewing Machine & Supply LLC

Mitsubishi LS2-190 Specifications

General

Brand	Mitsubishi
Model	LS2-190
Category	Sewing Machine
Language	English